F3 K0.3 Nb Masse R, Aleonard S, Averbuch-Pouchot M Journal of Solid State Chemistry 53 (1984) 136-139 Chemical Preparation and X-ray Structure Determination of K0.3 Nb F _cod_database_code 1008237 _database_code_amcsd 0016159 7.540 13.06 7.750 90 90 90 C222_1 atom x y z occ Nb1 -.0038 0 0 Nb2 .2515 .2518 .0013 K1 0 .497 .25 .9 F1 .5020 .2095 .473 F2 .6850 .3964 -.042 F3 .6872 .3947 .494 F4 .7715 .2625 .256 F5 0 -.0119 .25